The yellowing on my plants has started to travel up farther to the top at about 4 weeks into flowering, is this normal? How much yellowing is normal for a flowering plant? Even the leaves at the main cola at the top have started to yellow. Ive only gave them nutes once, terracycle plant food.
how much yellow are you actually experiencing??? pic would be awesome too bra edit: just on tips or the plant has a yellowy color??
Thats too much yellowing too early. They should only yellow towards the last weeks of flowering. At 4 weeks I would give them a good dose with a fert high in N.
Its good to let the leaves turn yellow about 2 weeks before harvest...they turn yellow because they use up all the nutes already in the flower and transfer them to the bud sites..this will cause large growth for last 2weeks.. 4weeks is a bit early...unless you want to harvet soon but i doubt it..give them some good feeding like smknvtec said...yellow leaves normally is because deficiency of Nitrogren..